LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,Rolling cutter bit or rolling cutter bit element

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hard facing material for rock bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfaced drilling tool joints

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing composition for rock bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing for milled tooth drill bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing having coated ceramic particles or coated particles o

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing material for rock bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing material for rolling cutter drill bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing materials including PCD particles, welding rods...

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing on steel tooth cutter element

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing rock bit cones for erosion protection

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing with coated diamond particles

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing with coated diamond particles

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardfacing with multiple grade layers

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardmetal facing for earth boring drill bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Hardmetal facing for rolling cutter drill bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

High density row on roller cone bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

High energy cutting elements and bits incorporating the same

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

High offset bits with super-abrasive cutters

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

High offset bits with super-abrasive cutters